CivPro Exam

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ph14
Posts: 3225
Joined: Mon Sep 12, 2011 11:15 pm

Re: CivPro Exam

Postby ph14 » Sun Nov 20, 2011 12:23 am

brickman wrote:
PinkCow wrote:Add me to the magic hypo list?

Also, OP your prof does sound a little...tense...Is he a jerk in class?



haha, no he is an excellent professor, brilliant guy. but he is certainly enthusiastic.

he uses this: http://en.wikipedia.org/wiki/Point-bise ... oefficient

to determine when to drop out a multiple choice question. Yaleies...go figure.


Can we get the lay person's explanation? that was too complicated for me lol.

bdubs
Posts: 3729
Joined: Sat Feb 06, 2010 2:23 pm

Re: CivPro Exam

Postby bdubs » Sun Nov 20, 2011 12:30 am

ph14 wrote:
brickman wrote:
PinkCow wrote:Add me to the magic hypo list?

Also, OP your prof does sound a little...tense...Is he a jerk in class?



haha, no he is an excellent professor, brilliant guy. but he is certainly enthusiastic.

he uses this: http://en.wikipedia.org/wiki/Point-bise ... oefficient

to determine when to drop out a multiple choice question. Yaleies...go figure.


Can we get the lay person's explanation? that was too complicated for me lol.


Less technical explanation:
http://www.apexdissertations.com/articl ... ation.html

Basic idea: The professor can't determine how well the multiple choice question is measuring understanding of the topic with "standard" statistical measures, so he's using something specifically tailored to categorical variables.

It's a measure of "fit" like r, or r-squared.

Why this is relevant to whether he's a good professor or not is completely unclear to me.

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ph14
Posts: 3225
Joined: Mon Sep 12, 2011 11:15 pm

Re: CivPro Exam

Postby ph14 » Sun Nov 20, 2011 12:31 am

bdubs wrote:
ph14 wrote:
brickman wrote:
PinkCow wrote:Add me to the magic hypo list?

Also, OP your prof does sound a little...tense...Is he a jerk in class?



haha, no he is an excellent professor, brilliant guy. but he is certainly enthusiastic.

he uses this: http://en.wikipedia.org/wiki/Point-bise ... oefficient

to determine when to drop out a multiple choice question. Yaleies...go figure.


Can we get the lay person's explanation? that was too complicated for me lol.


Less technical explanation:
http://www.apexdissertations.com/articl ... ation.html

Basic idea: The professor can't determine how well the multiple choice question is measuring understanding of the topic with "standard" statistical measures, so he's using something specifically tailored to categorical variables.

It's a measure of "fit" like r, or r-squared.

Why this is relevant to whether he's a good professor or not is completely unclear to me.


How does this play out? closer to 0 the hardest the question, closer to 1 the easier the question?

bdubs
Posts: 3729
Joined: Sat Feb 06, 2010 2:23 pm

Re: CivPro Exam

Postby bdubs » Sun Nov 20, 2011 12:40 am

I'm assuming that he's dropping questions that are too easy so that the curve disperses more when the essay questions are factored in. Since it's supposed to be a variant of the Pearson moment, I think that you're right that the higher the degree of correlation the more likely it is that the question is easy.

Although an extremely hard question in which the majority of people are misled may also have a high correlation measure value. He might still drop it though.

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brickman
Posts: 347
Joined: Mon Jun 29, 2009 2:59 am

Re: CivPro Exam

Postby brickman » Sun Nov 20, 2011 1:43 am

sorry to have derailed, was just trying to show how much thought and technicality he puts into the class...absurd.

In any case, anyone know of good outlines with PJ hypos?

I'm just going to rip through my schools library tomorrow and try to find something but suggestions would be helpful.




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